Improvement in blow-off cocks for pumps



UNITED STATES PATENT OFFICE.

THOMAS sHAW, 0E PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT I N BLOW-OFF COCKS FOR PUMPS.l

Specification forming part of Letters Patent No. 36,23. dated August 19, 1862.

To all whom it may concern:

Be it known that I, THOMAS `SHAW, of the city and county of Philadelphia and State of Pennsylvania, have invented a new and Improved Blow-Off Cock for Pn mps; and I hereby declare the following to be a full, clear, and eX- act description of the same, reference being had 5to the accompanying drawing, and to theletters of reference marked thereon.

My invention consists in the application of a valve to the ordinary blow-off cock.

In order to enable others to practice my invention, I will proceed to describe its construction and operation.

The accompanying drawing, which forms a part of this specication, represents a longi.

tudinal section throughthe center, of which a is an ordinary blow-off cock, to which is connected the chamber d. Said chamber is formed by means of cups b and c, screwed upon the partition d. The partition d has small'holes, g, surrounding the center f. Said holes are covered with a disk of flexiblematerial, e, as

india-rubber, which is secured in the partition Vhat I claiin,and desire to secure by Letters Patent, is-

The combination of a valve and faucet when applied to a pump, substantially as shown and described.

rrHoMAsk SHAW.

Witnesses:

C. BRAZER, W. P. BRAZER. 

